Despite of the author's wealth skills, background and experience as Quality Assurance professional, communication incompetency undermines success yielding to unwanted ramification events. English is a universal language but expression may vary significantly from country to country. Language varies when natives coined word or words to localize its meaning. The author experienced difficulty to communicate well with American native tongue speakers and took time learning it. He was inspired to write this book help US foreigners (professionals, businessman, students, immigrants and anyone who are involved in American conversations) better understand American idioms, slang and phrases used in daily basis. Knowledge of it will certainly enable a foreigner to become a better speaker, significantly improve the communication and ease the conversation.